Not so long ago, political scientists argued that voters pretty much constituted a socio-economic mirror image of the American population in general. The claim was made that election results would be the same if everyone voted.

Classically good-looking, very blue-eyed Bradley Cooper has been popping up in movies for almost a decade and a half. You’ll recognize a young Cooper playing Ben in 2001’s “Wet Hot American Summer.” Then there were TV movies, TV series and the lead...